裂縫 angolul

cleft [clefts]▼(opening made or as if made by splitting)
noun
[UK: kleft] [US: ˈkleft]

crack [cracks]▼(thin space opened in a previously solid material)
noun
[UK: kræk] [US: ˈkræk]

fissure [fissures]▼(crack or opening)
noun
[UK: ˈfɪ.ʃə(r)] [US: ˈfɪ.ʃər]

fissure vent▼noun